How does a zygote develop into a multicellular organism ? answer this

Vessels draining the myocardium of the heart, open primarily ,into which chamber?

Which kind of mutation has occurred when the codon for an amino acid is changed to a stop codon? a. a silent mutation b. a missense mutation c. a frameshift mutation d. a nonsense mutation

Select the correct answer. for their summer holiday, jane and her family are visiting places surrounding the mediterranean sea. which type of biome is jane and her family visiting? a. rainforest b. shrubland c. tundra d. coniferous forest reset next